The unit digit in (3^{65} \times 6^{59} \times 7^{71} ) is?

RRB Assistant Loco Pilot and Technician Model Paper 13 with key

Question : 70 of 100

Marks: +1, -0

The unit digit in

(3^{65} × 6^{59} × 7^{71} )

is?

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